atomic number 18
atomic mass 20
number of protons 18
number of neutrons 22
number of electrons 18
period group 18
melting point -189.2
boiling point -185.8
state (solid, liquid, gas) gas
density 1.784 g/L
metal or non metal metal
colour of element colourless
who discovered it William Ramsay, Baron Rayleigh
when was it discovered 1894
where was it discovered Scottland
flammable inert gas ( doesn't react) non flammable
interesting facts in earths atmisphere argon is the third most common used gas.
18 Argon
atomic number 18
atomic mass 20
number of protons 18
number of neutrons 22
number of electrons 18
period group 18
melting point -189.2
boiling point -185.8
state (solid, liquid, gas) gas
density 1.784 g/L
metal or non metal metal
colour of element colourless
who discovered it William Ramsay, Baron Rayleigh
when was it discovered 1894
where was it discovered Scottland
flammable inert gas ( doesn't react) non flammable
interesting facts in earths atmisphere argon is the third most common used gas.